Device for cutting and setting a free end of adhesive tape in a predetermined position on an applicator roller, particularly for cardboard box sealing machine taping units

Abstract

A cutting blade is fixed to a supporting frame rotatable about an inlet applicator roller. Locator projections work together to stop said frame in a predetermined angular position, in which the blade carries out the cutting of the adhesive tape on the applicator roller.

I claim: 
     
       1. In a carton sealing machine: means for mounting a roll of adhesive tape for rotation about its axis; an inlet tape applicator roller mounted for rotation about its axis for receiving tape from a roll of tape on said mounting means whereby there is a normal path of travel between said mounting means and said inlet roller during operation of the machine; an outlet applicator roller mounted for rotation about its axis; and a device for manually cutting a nonadhesive tail from a leading end of a length of tape from a new roll of tape and for pressing the resulting free end of the tape in a predetermined position on the inlet applicator roller so that normal operation of the machine may occur, said device including a frame mounted for independent rotation about the axis of said inlet applicator roller and a cutting blade fixed to said frame, the arrangement being such that upon rotation of said frame said cutting blade can move toward and away from said path of tape travel, said device further including stop means for stopping said frame in a predetermined operative position in which said blade is in a desired tape-cutting position adjacent said path of tape travel, whereby a nonadhesive tail can be cut from a leading end of a length of tape by manually grasping such tail and applying the tape to said blade to cut the tape and whereby said frame and blade may be rotated to an inoperative position. 
     
     
       2. A taping unit as in claim 1 wherein said frame is rotatably mounted on a pin which also constitutes a pivot pin for said roller. 
     
     
       3. A taping unit as in claim 2 wherein positioning means include a nib protruding from said frame and a fixed projection on a support for said pin.